The SSH protocol is a secure version of telnet.
First we check if there is a SSH deamon running.
# systemctl status sshd
When there is we see:
# systemctl status sshd
● sshd.service - OpenSSH server daemon
Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: enabled)
Active: active (running) since wo 2020-11-11 14:57:31 CET; 2h 22min ago
Docs: man:sshd(8)
man:sshd_config(5)
Main PID: 906 (sshd)
CGroup: /system.slice/sshd.service
└-906 /usr/sbin/sshd -D
We are done with it.
Is part of the minimal install.
Configuration is not necessary.
Is set after installation.
To start the ssh-deamon enter:
# systemctl start sshd
To start at bootime enter:
# systemctl enable sshd
If not already done install a ssh-client on a remote machine, use PuTTY on windows and open a connection to your server. If you have an linux workstation you can use ssh on the cmd-line.
If possible connect via an VPN-connection to your server en keep the SSH port closed on your router. This keep hacking attemps to a minimum. you need an VPN-server running on the router. Fritz!Box supports this.